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# Articles

PP Avelino, LMG Beça, and CJAP Martins

**Linear and non-Linear Instabilities in Unified Dark Energy Models**

Unpublished.

P Avelino, L Beça, JP Carvalho, and C Martins

**Facts and Fallacies of Unified Dark Energy**

Preprint (2007)

P Avelino, C Martins, and E Shellard

** Effects of inflation on a cosmic string loop population**

Phys. Rev. D 76, 083510 (2007)

P Avelino, C Martins, J Menezes, R Menezes, and J Oliveira

** Scaling of cosmological domain wall networks with junctions**

Phys. Lett. B 647, 63--66 (2007)

D Bazeia, L Losano, R Menezes, and J Oliveira

**Generalized Global Defect Solutions **

Eur. Phys. J. C 51, 953 (2007)

L Beça and P Avelino

** Dynamics of perfect fluid unified dark energy models**

Mon. Not. Roy. Astron. Soc. 376, 1169--1172 (2007)

EV Castro, KS Novoselov, SV Morozov, NMR Peres, JMB Lopes dos Santos, J Nilsson, F Guinea, AK Geim, and AH Castro Neto

**Biased bilayer graphene: semiconductor with a gap tunable by electric field effect**

Phys. Rev. Lett. 99, 216802 (2007)

EV Castro, NMR Peres, and JMB Lopes dos Santos

**Gaped graphene bilayer: disorder and magnetic field effects**

phys. stat. sol. (b) 244, 2311 (2007)

L Cornalba, M Costa, and J Penedones

**Eikonal approximation in AdS/CFT: Resumming the gravitational loop expansion**

JHEP 09, 037 (2007)

L Cornalba, M Costa, J Penedones, and R Schiappa

**Eikonal Approximation in AdS/CFT: Conformal Partial Waves and Finite N Four-Point Functions**

Nucl.Phys.B 767 (3), 327-351 (2007)

L Cornalba, MS Costa, J Penedones, and R Schiappa

**Eikonal Approximation in AdS/CFT: From Shock Waves to Four-Point Functions**

JHEP 08, 019 (2007)

L Cornalba, MS Costa, J Penedones, and P Vieira

**From fundamental strings to small black holes**

Nucl. Phys. Proc. Suppl. 171, 306-307 (2007)

N Gromov and P Vieira

**Complete 1-loop test of AdS/CFT**

Preprint (2007)

N Gromov, V Kazakov, K Sakai, and PG Vieira

**Strings as multi-particle states of quantum sigma-models**

Nuc. Phys. B 764, 15-61 (2007)

G Hegyi, Z Néda, and MA Santos

**Wealth distribution and Pareto's law in Hungarian medieval society**

Physica A 380, 271 (2007)

C Herdeiro, R Ribeiro, and M Sampaio

** Scalar Casimir Effect on a D-dimensional Einstein Static Universe**

Pre-print; Submitted to Classical and Quantum Gravity (2007)

V Kazakov and P Vieira

**From Characters to Quantum (Super)Spin Chains via Fusion**

Preprint (2007)

JMB Lopes dos Santos, NMR Peres, and AH Castro Neto

**Graphene bilayer with a twist: electronic structure**

Phys. Rev. Lett. 99, 256802 (2007)

F Paccetti Correia, MG Schmidt, and Z Tavartkiladze

**Radion Stabilization In 5D SUGRA**

Nucl. Phys. B 763, 247 (2007)

V Pereira, J Lopes dos Santos, and A Castro Neto

**Modeling disorder in graphene**

Phys. Rev. B 77, 115109 (2007)

NMR Peres and EV Castro

**Algebraic solution of a graphene layer in transverse electric and perpendicular magnetic fields**

J. Phys.: Condens. Matter 19, 406231 (2007)

NMR Peres, FD Klironomos, S Tsai, JR Santos, JMB Lopes dos Santos, and AH Castro Neto

**Electron waves in chemically substituted graphene**

EPL (Europhysics Letters) 80 (6), 67007 (2007)

MA Santos, R Coelho, G Hegyi, Z Néda, and J Ramasco

**Wealth Distribution in Modern and Medieval Societies**

Eur. Phys. J. St 143, 81 (2007)

D Vitali, S Gigan, A Ferreira, H Boehm, P Tombesi, A Guerreiro, V Vedral, A Zeilinger, and M Aspelmeyer

**Optomechanical entanglement between a movable mirror and a cavity field**

Phys. Rev. Lett. 98 (3), 030405 (2007)

N Gromov, V Kazakov, and P Vieira

**Classical limit of quantum sigma-models from Bethe ansatz**

PoS SOLVAY, 005 (2006)